Machine fob dbtihg paper



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@TAE @AT JOHN HOYT, OF CLEVELAND, OHIO.

MACHINE FOR DRYING- PAPER.

To all whom 'it may concern:

Be it known that I, JOHN HoY'r, of Clevel land, in the county of Cuyahoga, in the State of Ohio, have invented a new and useful Machine for Drying Sized Paper; and l do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l is a perspective view; Fig. Q is a longitudinal section cut through the line Y, Z as shown on Fig. l. Fig. 3 is a transverse section through the line XV, X, of Fig. 2, and Fig. 4 is also a transverse section of Fig. 2 through the line U, V.

The object of my invention consists in providing a machine by which sized paper can be dried in the web and preserve the quality of the size, and by preventing the paper from coming in contact with the heated metallic surfaces.

To enable others skilled in the art to make and use my invention, l will proceed to describe its construction and operation.

The frame of my machine (see letters (L a a in different figures) should be made of iron properly fastened together by bolts. into this frame are attached the steam cylinders A, A, A, A; the non metallic rollers C, C, C, C, (see Fig. 2) kept properly in their places by suitable journal bearings, and also to this frame are attached the heaters B, B, B, B. At the ends of the shafts which hold the steam cylinders A, A, A, A and the rollers O C O C, tc., are attached the large pulleys S, S, S, S, and the small pulleys B., R, R, &c. (See Fig. l.) The small pulleys G, G, as seen in Fig. 1, are used for the purpose of giving a continuous rotary motion to the belt T. rhe rollers O O2 O3 OAx C5 C are used to hold the paper 'to its proper position and are moved by t-he paper passing over them. These are attached to the diameter of the steam cylindersl guards J, J, J, J, &c., made of wood or other non metallic substance. These guards are for the purpose of keeping the paper at a suitable distance from the heated metallic surface. On the inside of these cylinders and at the end at which the steam escapes are placed scoops H, H, for the purpose of discharging the water caused by the condensed steam. (See FLO'. Steam pipes are connected to the ends of the shafts of the cylinders A, A, A, A, bot-h for the ingress and egress of steam. At the place of connection the common contrivance of stud'- ing boxes is used. l

The heaters B, B, B, B, Sac., are made from iron or any sheet metal. The length and breadth should be such as to conform to the size of the frame work of the machine. These heaters may be made with any convenient space for steam room. The plates are to be properly stayed with bolts to give them strength. There are connected to these heat ers pipes E, E, E, E for the ingress and egress of steam. (See Fig. l.)

For the purpose of operating this machine, it is set in mot-ion by being conveniently attached to the main driving power. rllhe cylinders and heaters are to be heated by being connected to proper steam boilers.

rllhe paper after leaving the sizing machine, passes into the driver at the boilers C1, and around the cylinder A, A, A, A, in the direction of the arrows as seen in Fig. 2. From the steam cylinders the web passes under the roller O and over all the rollers O, C, C, O, &c., and between the heaters B, B, B, B, when it is discharged at the roller OG. While the paper is thus passing through the size drier it is kept at a suitable distance from the heated metal of the steam cylinders by means of the non metallic guards J, J, J, &c.; and it also passes between the heaters by means of the rollers C, C, C, C, C, placed at each end of them. (See Fig. 2.) By these means we are enabled to keep the sized paper at any suitable distance from the heated metal. lf the sized paper was allowed to come in contact with the heated metal the quality of the size would become destroyed. By these means also we are enabled to produce a free circulation of heated air from both sides of the paper, and, at same time, to carry ofil freely the dampness evaporated.

`What l claim as my invention and desire to secure by Letters Patent in machines for drying paper by steam isl. Steam heated cylinders with non mestantally as described and for the purpose tallc guards arranged as described, in comset forth. bnaton with the stationary tubular heaters B, and non letallc rollersl C, substantially JOHN HOYT 5 as above described. tnessesz 2. The use of non metallic guards When JOSEPH POL, placed around close steam cylinders sub- SIDNEY Gr. BROCK. 

